[fpc-devel] Compiling for libgdb, and using make -j on larger SPARC systems

[Sven Barth]

Am 26.08.2013 14:11, schrieb Mark Morgan Lloyd:
> Sven Barth wrote:
>> Am 26.08.2013 11:55, schrieb Mark Morgan Lloyd:
>>> Mark Morgan Lloyd wrote:
>>>> Sven Barth wrote:
>>>>
>>>>>> Would it help if I were to build a cross-compiler here and try 
>>>>>> building
>>>>>> the IDE both with and without libgdb?
>>>>>
>>>>> It would help more if you'd be able to reduce the problem from 
>>>>> "compile IDE with libgdb" to "compile this simple unit/program". 
>>>>> Thus could you please try to reduce the ide/fpregs.pp unit (which 
>>>>> contains the suspicious TVectorRegs record) so far that it can be 
>>>>> compiled standalone (no further dependencies), but still triggers 
>>>>> the exception?
>>>>
>>>> I'll be back.
>>>
>>> This isn't quite what you've asked, but I can duplicate it with a 
>>> minimal program:
>>>
>>>
>> Well, at least it isn't *that* bad. You should now be able to just 
>> cycle the compiler (cd compiler && make cycle) and then compile the 
>> test program to check when things go wrong.
>>> I'm having problems reducing fpregs to a simple program, I'll post 
>>> more details once I've been able to look at it on the machine I've 
>>> moved onto for test purposes.
>>>
>> It will be interesting to see what minimal code will trigger the 
>> problem. Maybe it will point to a more serious problem inside the 
>> compiler.
>
> I've now got a standalone test_fpregs.pas which fails to compile in 
> the expected way, i.e. a compile-time error in ncgld.pas. I've got 
> other jobs to do for a few hours but will see what I can rip out 
> without losing the erroneous behaviour.
>

Take your time. A few hours/days more or less won't hurt and at least we 
already know a fix for the resulting problem, but I'd also like to fix 
the cause :)

Regards,
Sven